Information Technology Reference
In-Depth Information
OSP
Generator
Context Space
e
l
e
l
CSP
Box
CSPs
# templateID # data_set
Data Manger Box
#evaluate #query #result
DB Proxy Box
#args
#query
Query Definition Box
DB
Fig. 2.
The component structure for generating the Context Spaces
A Data Manager Box materializes the content of context corresponding to
the given data as 3D components depending on predefined template models.
The upper left part of Figure 1 shows the composite structure of the template
Boxes in order to materialize an OSP and an object space.
The Design of an Object Viewer.
It is up to a system designer how object
viewers are designed. In the case of Figure 1, an Image Viewer Box is used as
an object viewer. It has an image file name specified by an object identifier
and visualizes it. In our system, all functions are designed as 3D components,
allowing free combination with other components. This means that the user can
extend the functions by adding existing or future implemented components.
Context Space Generation Mechanism.
Figure 2 shows the component
structure for obtaining a collection of context spaces that satisfy a given query.
The Data Manager Box stores a CSP (a CSP Box that is connected with a
context space) as a template Box. It then gives the set of context spaces that
satisfy the query condition. For example, let us consider a query for selecting
all contexts that include a specified object
o
.Wecallsuchasetofcontexts
the
facets
of
o
. It gives users an overview of different aspects of the object
o
in
